Can-polishing machine.



No. 693,029. Patented Feb.r Il, |902.

F. KAESEB.

CAN PDLISHING MACHINE.

(Appximion mea occ. 2s. 1901.)

2 Sheets-Sheet (No Model.)

Patented Feb. Il, |902.

2 Sl'eets-Sheet 2.

No. 693,029. Y

.F. KAESER. GAN` POLISHING MACHINE. (Aplicmon med oct. 2s, 1901.)

(No llodel.)

UNITED STATES v PATENT OFFTCE.

FRITZ KAESER, OF HIGHLAND, ILLINOIS.

CAN-POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 693,029, dated February 11, 1902.V

r hpplication fled October 28, 1901. v Serial No. 80,216l (No model.)

lloV a/ZZ whom it may' concern..-

Be it known that I, FRITZ KAESER, a citizen of the United States, residingin Highland, in the county of Madison and State of Illinois, have inventedk certain new and useful Irnprovements in Can-Polishing Machines, of Which-the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specication.

The object of my invention is to construct a machine that will quickly and efficiently polish the ends of metal cans.

The invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a side elevation of my improved machine. Fig. II is a top plan View. Fig. III is a longitudinal sectional view taken on line III III, Fig. II. Fig. IVis a vertical sectional View taken on line IV IV, Fig. III. Fig. V is an enlarged detail sectional View taken on line V V, Fig. II. Fig. VI is a detail sectional view taken on line VI VI, Fig. III. Fig. VII is a detail sectional View of the edge of one of the can-lifting plates with a retaining-strip in position, thereon. Fig. VIII is an enlarged detail sectional view showing means employed for retaining the removable brushes in the brush-holders.

Referring by numerals to the accompanying drawings, 1 indicates the body or frame of the machine, which is a rectangular boxlike structure supported at its corners by the uprights 2. The top and bottom of the body 1 areiopen,and extending inwardly from the upper edge of the body l is an'integral flange 3. This flange supports the can carrying trays in their passage through the machine,`

which trays are guided and held in position by the lon gitudinally-extendingled ges 4, that project upwardly from the flanges 3 at the sides of the body 1. Positioned at the front end of the machinein horizontal alinement with the anges 3 isa receiving-table 5, the side edges of which are provided with flanges 6, that are in direct alinement with the ledges 4. At the opposite or rear end of the machine is arranged a discharging-table '7. The nprights or supporting-posts 2 extend a short distance above the body 1, and bolted to the upper ends of each pair of these uprights on the sides of the body are longitudinally-extending bars S, provided on their lower edges with the inwardly-extending flanges 9. Narrow ledges 10 are formed integral with the outer edges of the flanges 9, and formed in the anges 9 at suitable distances apart, inside the ledges 10, are oil-pockets 1l.V Bolted to the under side of the body 1 at suitable distances apart are the transversely-arranged bars 12,0n

which are mounted the vertically-arranged guide-boxes 13. Each adjacent pair of these guide-boxes are provided on their ends with the vertically-arranged ilanges14'. AAdapted to operate between each pair of guide-boxes 13 and against the flanges' 14 are the liftframes 15, each of which carries at its vupper end a lifting-plate 16. The front and rear edge'of each lifting-plate 16'is provided with a removable strip or platel', on the upper outer edge of which is formed integral a vertically-extending Wedge-shaped flange 18, Fig. VII. J ournaledin suitable bearings beneathrthe outer one of each of the pairs of guide-frames 13 is a transversely-arranged shaft 19, which carries a pair'of arms 20, that extend toward the opposite one of each pair of guide-frames. Formed' integral with the under side of each liftngplate 16 are two pairs of depending ears 21, and pivotally secured between eachvpair of ears is a socket 22. Pivotally secured tothe outer ends of each of the arms 2O are sockets 23, counterparts of the sockets 22, these sockets being paired in vertical alinement and forming seats for the screw threaded ends of connectingrods 23a, Figs. III and IV.

On one side of the machine the shafts 19 extend beyond the sidewall of the body 1 and are there Y provided Vwith Worm wheels 24. Worms 25 mesh withthese Worm-wheels 24, which Worms are carried by vertically-arranged shafts 26, that rotate in bearings 27, bolted to the side of the body 1, the upper ends of the shafts 26 being provided with operatinghandles 28. This mechanism j ust described provides means for elevating and lowering the lifting-plates 16. The uprights 2 at the front end of the machine are provided near their lower ends with outwardlyprojecting brackets 29, in which is journaled a transversely-arranged shaft 30. On the end of this shaft 30, on the side of the machine IOO with 1the shafts 26, is located a foot-lever 31, that projects toward the first one of the shafts 26, and upon the opposite end of said shaft 30 is an outwardly-projecting arm 32, that is provided on its end with a suitable weight 33. Carried by the shaft 30 and extending upwardly therefrom is a pair of arms 34, to the upper ends of which are pivotally secured the inner ends of a pair of connecting-links 35, the outer ends of which are pivotally connected to the ends of a cross-bar 36, that eX- tends across and is adapted to slide upon I(he table 5, said cross-bar being provided on its under side with the slots 37, which accommodate the flanges 6 of the table 5, Fig. V. The mechanism just described provides means for movinga tray of cans from the receiving-table onto the flanges 3 of the bodyof the machine.

The brush-holder frame comprises a pair of rectangular plates 38, joined by a centrallyarranged arm 39, to the center of which arm is journaled one end of a connecting-rod 40, that is operated in any suitable manner. The ends of the plates 38 lie and operate directly against the under sides of the fianges 9 of the bars 8, and bolted to the top sides of the ends of said plates 3S are plates 41, that bear directly upon the top surfaces of the flanges 9 and the ledges l0. Held by bolts or in any suitable manner to the under` sides of the plates 38 are the brush-holders 42, the edges of which are provided with depending flanges 43, the flanges at the ends of the holders being provided with removable retaining-strips 44. One side of these brush-holders is left open for the introduction of the brushes 45, and retaining-springs 46 are secured to the brush-holders in such manner that their free ends engage against the outer one of each set of brushes to retain all of said brushes in the holders. (See Fig. VIII.) The ends of each brush seat directly upon the retainingstrips 44, and secured to the back of each brush is a leaf-spring 47, which normally exerts a downward pressure upon the brush, Fig. VIII. The can-carrying trays 48 are shallow box-like structures of such a size that they conveniently fit upon the liftingplates 16 and between the ledges4 of the body of the machine. front and rear walls of these trays are slightly .beveled or rounded off in order to accommodate the wedge-shaped flanges 18 of the strips 17that are carried by the lifting-plates 16. The receiving-table 6 is of such a size that it will readily accommodate one of the cantrays when the bar 36 is at its rear limit of movement.

The operation of the machine is as follows: Proper power being applied to the connectingrod 40 reciprocates the brush-holder frame upon the flanges 9, said iangesl being thoroughly lubricated from the oil in the oil-pockets 11, and the brushes 45 are movedV backwardly and forwardly over the body of the machine. A tray of cans is placed upon the The lower corners of thev receivingtable 5, and the operator standing at the side of the machine between the shafts 26 places his foot upon and depresses the lever 31. actuates the bars 34 and links 35, thus moving the bar 36 across the receiving-table 5 and forcing the tray of cans onto the lefthand end of the machine, the ends of said tray riding upon the flanges 3. As the can-trays are successively placed upon the receivingtable 5 and shoved from there onto the body of the machine they are in turn brought into positions immediately above the liftingplates 16.- To elevate .the plates 16 and the trays of cans positioned thereupon, so as to bring the ends of the cans into the pathof travel of the bristles of the brushes, the operator by means of the handles 28 rotates the shafts 26, and this rotation through the Worm gearing rocks the transversely-arranged shafts 19.

20, and as a result the plates 16 are elevated between the guide-frames 13. The ends of the cans thus elevated are engaged bythe This movement rocks the shaft 30,

A This rocking 1 motion of the shafts elevates the outer ends of the arms bristles of the brushes and are very quickly i polishing agent, such as a lmixture of Whiting and water, is applied to the ends-of .the cans,

and this materially assists in the proper cleaning and polishing of the ends of the cans. The operator lowers the plates 16 by reversing the motion of the shafts 26, and whenjthe ends of the trays carrying thefcans that have just been polished rest upon the iianges 3 the foot-lever 3l is manipulated to force all of the trays forward the distance of one tray. By employing the springs 47 the brushes 45 are allowed a slight yielding movement upwardly independent of one another, and it is preferable to provide the brush-holders with as manybrushes as there are longitudinal rows of cans. To obtain the best'results in the polishing operation and to prolong the service of the brushes, it is essential that the brushcarrying frame be reciprocated such a distance that the ends of the brushes at the end of the stroke clear the outer rows of cans that are being polished.

My improved machine is simple in construction and operation and a large number of cans may be rapidly passed through the machine properly polished. If both ends of the cans are to be polished, it is necessary to invert the cans on their removal from the discharge-table 7 vand pass them thron gh the machine a second time.

In a machine of my improved construction I find it preferable to use heavy brushes or brushes with sti coarse bristles in the first or left-hand brush-holder, these brushes being what I term damp brushes, for the reason that they spread the moist Whiting thoroughly over the tops of the cans. Theopposite set of brushes are what I term the dry or polishing brushes and should contain uer bristles, for the reason that these brushes only perform the dry-polishing operation. This second set of brushes should be kept as dry as possible, and to accomplish this I arrange the lift-plates the distance of one tray apart in order that there may be a tray of cans lying between the two sets of brushes, and during the period of time that the lift-plates are elevated. the Whiting on the heads of the cans between the lift-plates thoroughly dries before the tray of cans is pushed forward and elevated.

I claim as my invention Y l. In a machine of the class described, a framework over which can-carrying trays pass, means whereby the can-carrying trays are passed over said framework, means whereby a plurality of the can-carrying trays are simultaneously elevated during their passage over the framework, brush-holders arranged for reciprocation above the framework, and

a plurality of brushes yieldingly held in the brush-holders, substantially as specied.

2. In-a machine of the class described, a framework over which can-carrying trays pass, means whereby the can-carrying trays are elevatedmeans whereby the can-carrying trays are moved from one elevating means to the other, and reciprocating brushes operating above the framework, substantially as specified.

3. In a machineof the class described, a

framework overl which .can-carrying trays pass,brushes reciprocating horizontally above the framework, means whereby the can-carrying trays are elevated to bring the ends of the cans into the path of travel of the brushes, and means whereby the can-carrying trays are rigidly held while elevated, substantially tain points during their passage over the' framework, a brush holder reciprocating above the framework, and a plurality of brushes yieldingly carried by said brushholder, substantially as described.

5. In a machine of the class described, a framework over which the cans to be polished pass, means whereby the cans are moved over the framework, brush-holders arranged for reciprocation above the framework, and a plurality of brushes yieldingly held in the brush-holders, substantially as specified.

6. In a machine of the class described, a framework over which the cans to be polished pass, means whereby-the cans are moved over the framework, means whereby the cans are elevated at certain points during their passage over the framework', means whereby the cans are rigidly held while in an elevated position, brush-holders reciprocatingabove the framework, and a plurality of brushes yieldingly held in said brush-holders,substantially as specified.

.FRITZ KAESER.

In presence of i C. HAEBERLIN, THEO. ITTNER. 

